Q: What are the prime factors of the number 15,975,135?

 A: 3, 5, 11, 59, 547

Why are those the prime factors of the number 15,975,135?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 15,975,135

15,975,135
Factor Arrows
35,325,045
Factor Arrows
31,775,015
Factor Arrows
5355,003
Factor Arrows
1132,273
Factor Arrows
59547

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

3, 5, 11, 59, 547

We can check our work by multiplying all of the prime factors together: 3 x 3 x 5 x 11 x 59 x 547 = 15,975,135

This can also be written as 32 x 51 x 111 x 591 x 5471 = 15,975,135

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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